Color

#f3effb

#f3effb
hex#f3effb
rgbrgb(243, 239, 251)
hslhsl(260, 60%, 96%)
oklchoklch(0.959 0.016 301.2)
Closest name: Cloud Break (#f6f1fe)Relative luminance 0.8775

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f7fbef

#eff1fb · #f9effb

#fbf3ef · #effbf3

Split-complementary

Open in tool →

#fbf9ef · #f1fbef

#fbeff1 · #f7fbef · #effbf9

Contrast

#f3effb as textRatioAAAA largeAAAFix
Aaon white
1.13:1failfailfail
  • AA: use #855cd6 as the text (4.67:1)
  • AAA: use #6633cc as the text (7.22:1)
  • AA: or shift the background to #6e6e6e (4.5:1)
  • AAA: or shift the background to #4f4f4f (7.24:1)
Aaon black
18.55:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f3effb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#f3effb reads as cool, vivid, light. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f3effb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #f3effb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f3effb-ae9cc4-dfc94e-2a1f2d-e9ebf1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md